package com.itheima.reggie.common;

import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import java.sql.SQLIntegrityConstraintViolationException;

/*
*
* 全局异常处理
* */
@ControllerAdvice(annotations = {RestController.class, Controller.class})
@ResponseBody
@Slf4j
public class GlobalExceptionHandler {
    /*
    * 异常处理方法
    * */

    @ExceptionHandler(SQLIntegrityConstraintViolationException.class)
    public R<String> exceptionHandler(SQLIntegrityConstraintViolationException ex){
        log.error(ex.getMessage());
        //将报错信息拆分成数组 数组中的对象进行比对
        if(ex.getMessage().contains("Duplicate entry")){
            String[] split=ex.getMessage().split(" ");
            String msg=split[2]+"已存在";
            return R.error(msg);
        }
        //其他额外情况 一律为未知错误
        return R.error("未知错误");
    }


    /*
     * 自定义异常处理方法
     * */

    @ExceptionHandler(CustomException.class)
    public R<String> exceptionHandler(CustomException ex){
        log.error(ex.getMessage());

        return R.error(ex.getMessage());
    }
}
